Ablaze/əˈbleɪz/ Definition 1 of 3Pro Tip 1/3Physical Fire Used when something is literally on fire with visible flames. The campfire was ablaze, casting warm light around. Pro Tip 2/3Bright Illumination Describes places or objects that are brightly lit, not just fire. The skyline was ablaze with the colors of the sunset. Pro Tip 3/3Intensity Emphasis Emphasizes the intensity or extent of a fire or light. When the power came back, the whole building was ablaze.